If “industry sources” and staffer leaks are to be believed, this year’s Lollapalooza is going to be heavy on the rock’n’roll this year.

The Chicago Tribune is reporting a whole slough of acts slated to play the August 2-4th Chicago festival. Among them are Mumford & Sons, Phoenix, The Postal Service, Vampire Weekend, The Killers and The National, those are just a few of the not-unlikely bands that are rumored to be taking the stage at the city’s downtown Grant Park. It makes sense: Mumford & Sons are headlining Bonnaroo, Phoenix and a reunited Postal Service are headlining Coachella, while Vampire Weekend, Phoenix and The National have new albums dropping this spring. The Killers, meanwhile, released a new album, Battle Born, last year.

Predicting (and parodying) festival lineups has become its own kind of music news nerd sport, and the game has only ratcheted up this year. Two seemingly unlinked Twitter accounts, @TheLollaLeaker and @AgentofLolla, sprung up in the past month, each with the intent of breaking the news of the festival’s lineup.

It’s all a little ridiculous given that, aside from a handful of reunions or left-field pop stars, these festivals dependably tap the year’s most commercially successful rock and “indie” bands to perform. @AgentofLolla has gone so far as to release a supposed screencap of the festival’s lineup, the picture of which includes the aforementioned acts as well as MGMT and Kendrick Lamar, and big-timers the Flaming Lips and Skrillex. It wouldn’t be a huge surprise if this information turns out to be spot-on, but not because it was coming from the inside offices of Lollapalooza. Based on who’s touring and promoting new releases, there are only so many acts that make sense at this summer’s big festivals, and just about all of them have been named in these supposed leakers’ reports.

At any rate, “early bird” tickets go on sale next Tuesday, and the official lineup will be released April 9. Then and only then will you know if the strategic headache that is attending a massive summer festival is worth your time and money. Until then, let’s enjoy the speculation.